U.S. patents available from 1976 to present.
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Class 340/854.9 - Cable or wire (e.g., conductor as support, etc.)


Subclass of Class 340 - Communications: electrical
Definition: Subject matter wherein an electrical information or control
No. of patents: 161
Last issue date: 12/06/2011


        5  
NumberTitleIssue Date
3935556Dual function logging tool and method
A method and apparatus for converting a single function, i.e., hydrocarbon detection, well logging tool to a dual function tool, i.e., the detection of naturally occurring gamma rays, by making the amplitude reference pulses necessary for single function ...
01/27/1976
        5  
 
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